Keyboard shortcuts/navigation for Panel action buttons

It would be great if prompts in the Panel by default always had a keyboard shortcut for the action button.

Examples:
The upload dialog could use alt+/option+U, as U is the first letter in Upload, the Delete prompt could use alt+/option+D, as D is the first letter of Delete.

This is the default behavior in macOS too, any dialog will accept cmd+[FIRST-LETTER], it feels natiural a web app would use option/alt instead of the cmd/windows key.